. >> the nra's number one -- this myth that the nra can destroy political careers is just not true. >> it not a myth that after the assault weapons ban was passed, there was a huge political price for democrats to pay. and nearly 20 years later, they don't want to touch the issue. >> it is true that they lost a lot of seats then t cause and effect isn't quite so clear. and what happened then isn't what happens now. if 27 people killed, to children, if this isn't enough to change the mentality, the saipsyc psych ke of the american public. >> we have this assault rifle, the pistol, the semi-automatic pistols, the 9 millimeters, but we're also learning that these weapons were found and legally purchased by his mother, at her home. she lives in a rural area and had them for self-defense. >> i can't tell you if you stopped people who have psychiatric problems, who have criminal records who have substance abuse problems, who are minors, if you ever stopped any of them from guy buying a gun, that this particular event would not take place. this is just one in a series of what happens again a